This is to promote renewable energy in general rather than just wind turbines. Other renewable energy options have some advantages over wind energy. For example, solar power requires no moving parts so potentially means less maintenance, no threat to birds and no noise. However; wind energy is likely here to stay for now: the energy output of some of the largest wind turbines is colossal, small turbines can conveniently be put up onto roofs or various other places and furthermore new wind turbine designs claim to offer numerous advantages such as less noise, less cost, less threat to birds, use of less space and greater efficiency.If you want to help reduce global warming you can support Avaaz